/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionAbsorptionMediumMaterialOutput.h
Material output expression for setting absorption properties of solid refractive glass (for the Path Tracer Only).
class UMaterialExpressionAbsorptionMediumMaterialOutput : public [UMaterialExpressionCustomOutput](API\Runtime\Engine\Materials\UMaterialExpressionCustomOutput)
FExpressionInpu...
TransmittanceColor
Input for the transmittance color seen after travelling a distance of 100 units into the object.